Godeson 88702 Smart Color Coded Tire Tread Depth Gauge 1. Accurately measures tire tread depth gauge, Calibrated from 0 to 1 inch in 1/32 inch 2. Color coded tire tread depth gauge clearly indicates the tire different phase by colors 3. Tire tread depth gauge of Red range on bar: 0-3/32; Yellow Range on bar: 3/32 - 6/32; 5. Green Range on bar: 6/32-32/32 4. Comes with a pocket clip, easy to carry a tire tread depth gauge 5. Tire tread depth gauge reads in 32nds Suitable for trucks, motorcycles, automobiles and any passenger vehicle